Kristin Stewart's affair with director Rupert Sanders in July enraged 'Twilight' fans -- and forced her to make a very public apology. / Stuart Wilson, Getty Images

by Lorena Blas, USA TODAY

by Lorena Blas, USA TODAY

2012 was the year of TMI as far as some high-profile celebrities go. From a messy extramarital affair to an ugly brawl related to a bitter divorce, Hollywood managed to expose its less-than-sparkly side.

It's probably safe to say that July was not Stewart's favorite month in 2012. On the 25th, after scandalous photos of her getting intimate with her married Snow White and the Huntsman director, Rupert Sanders, were published, she felt compelled to make an announcement to the world. After all, she was leading lady on screen and in real-life to Robert Pattinson, the Twilight hunk whom every girl wanted to win over. They had been dating for three years. Her big reveal? Here it is: "I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected," Stewart said in a statement. "This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry." The two appear to have reunited, at least on the red carpet, during the promotional tour for the last installment of their movie franchise, Twilight Breaking Dawn - Part 2.

Halle Berry

After dating for more than a year, the Oscar-winning actress and French actor Olivier Martinez were engaged. But the happy was mixed with high drama as Berry was embroiled in a custody battle with former fiancé Gabriel Aubry, father to their daughter, Nahla, 4. In June, she was ordered to pay Aubry about $20,000 a month. She told InStyle magazine in an interview that became public in October that she wanted to move Nahla overseas to shield the girl from the spotlight. On Thanksgiving morning, the drama really unfolded as Martinez and Aubry got into an altercation at Berry's home in Los Angeles. Aubry was taken into police custody after paying a visit to a local hospital for injuries he received during the brawl. Within the week, her attorney said all was settled in the custody dispute. "The parties have reached an amicable agreement," a written statement from attorney Blair Berk said. "There will be no further statements regarding this matter." Whew.

Kirstie Alley

The actress, 61, released a tell-all memoir in the fall, and as expected, she did not hold back. It wasn't that she bashed her enemies. It was like a tale of her loves - all of them. What hit the media spotlight first? Well, she was in love with John Travolta while she was still married to actor Parker Stevenson. In promoting her book, The Art of Men, she said in an interview with Barbara Walters that she and Travolta had serious off-screen chemistry while making Look Who's Talking in the mid-1980s. "Believe me, it took everything that I had, inside, outside, whatever, to not run off and marry John. And be with John for the rest of my life," Alley said. She added that Travolta was the "greatest love of my life." Who else did she have a thing for? Patrick Swayze. Alley, who was still with second husband Parker Stevenson, and Swayze, who was with longtime love Lisa Niemi, began an intense relationship while filming 1985's North and South, Alley told TV's Entertainment Tonight. "Both of us were married. We did not have an affair," Alley said. "But again, I think what I did was worse. Because I think when you fall in love with someone when you're married, you jeopardize your own marriage and their marriage. It's doubly bad." Um, OK.

Angus T. Jones

On Nov. 27, the 19-year-old actor began to make amends for saying some, well, pretty interesting things about his TV sitcom, Two and a Half Men. "Without qualification, I am grateful to and have the highest regard and respect for all of the wonderful people on Two and a Half Men with whom I have worked and over the past 10 years who have become an extension of my family," he said in a statement. Jones, who has played Jake Harper since Men's premiere in 2003, credits co-creator Chuck Lorre and others at CBS and Warner Bros., the show's producer, for "what has been one of the most significant experiences in my life to date. I thank them for the opportunity they have given and continue to give me and the help and guidance I have and expect to continue to receive from them." What exactly had he said previously that exposed a possible fractured or dysfunctional relationship with his bosses? "If you're watching Two and a Half Men, please stop watching Two and a Half Men. I'm on Two and a Half Men. I don't want to be on it. ... Please stop filling your head with filth," he said on a video posted on YouTube by the church site The Forerunner Chronicles. He continues: "Do some research on the effects of television and your brain, and I promise you you'll have a decision to make when it comes to television and especially with what you watch on the television. It's bad news. ... I don't know if it means any more coming from me, but you might not have heard it otherwise." He probably felt better after getting that off his chest.

The Jackson family

Will the Jacksons ever be over the drama? Two years after his death, Michael Jackson was still making headlines, thanks to his siblings and children. In mid-July, siblings Janet, Jermaine, Rebbie, Tito and Randy sent an angry letter to the two men overseeing the King of Pop's estate, accusing them of fraud. The letter was made public and an estate spokesman denied the accusations: "Any doubts about the validity of Michael's will and his selection of executors were thoroughly and completely debunked two years ago when a challenge was rejected by the Los Angeles County Superior Court, the California Court of Appeals and, finally, the California Supreme Court." A few days after the letter made the media rounds, family matriarch Katherine Jackson was reported missing by the 82-year-old matriarch's nephew, Trent, who said she has not been heard from in a week. The next day, however, Katherine's son Jermaine Jackson as well as the Los Angeles County Sheriff's Department confirm that Katherine is resting with family members in Arizona. And in the meantime, Michael's daughter, Paris, tweeted about her "missing" grandmother. More excitement ensued when a few days later, Los Angeles County sheriff's deputies paid a visit to Katherine Jackson's home in Calabasas, Calif., after an altercation took place there. Photos from the scene showed Michael's siblings Janet and Jermaine present. Tito backed down from his accusations about Michael's estate: "I completely retract my signature from the July 17th letter sent to the Executors of my brother Michael's estate and repudiate all the claims made against them. I don't want any part of that letter whatsoever." Meanwhile, T.J. Jackson, Tito's son, planned to seek temporary guardianship of Michael's three children. On July 25, after an emergency court hearing in Los Angeles, Katherine temporarily lost custody of her three grandchildren. Michael's nephew T.J. was appointed temporary guardian after Paris and Prince consented to being in T.J.'s custody in the absence of their grandmother. On July 26, Katherine arrived back to her home in Calabasas. "grandma's here! #thankyougod," Paris tweeted. We think that's all, folks. For now.